Finding the Fourth Proportional to 9,109.43, 12,576.82 and 7,434.83

Step by Step Solution

1. Step 1: Write the proportion equation
   9,109.43 : 12,576.82 = 7,434.83 : x
2. Step 2: Convert to fraction form
   9,109.43/12,576.82 = 7,434.83/x
3. Step 3: Cross multiply
   9,109.43x = 12,576.82 × 7,434.83
4. Step 4: Simplify right side
   9,109.43x = 93,506,531.50
5. Step 5: Solve for x
   x = 93,506,531.50/9,109.43
6. Step 6: Final answer
   x = 10,264.81